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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/67205
Access Date: April 18, 2025
From the American Horology Archive:
Seth Thomas Grade 506 Pocket Watch
Seth Thomas Watch Co.

Grade: 506

Private Label(s) in Run:

Custis Bros. - Minneapolis, Minn.

What is a Private Label?
Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 67205 Question Mark
Grade: 506 Question Mark
Model: 3 Question Mark
Estimated Production Year: 1893 Question Mark
Run Quantity: 100 Question Mark
Grade/Model Run: 2 of 5 Question Mark
Grade/Model Total Production: 1,200 Question Mark
Variant Est. Production: 1,180 (18S-M3-17J-ONL) Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Balance Type: Expansion Question Mark
Regulator: Reed Question Mark
Hairspring: Flat Question Mark
Standard Dial Type: Double-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Case: Various Question Mark
Run ID: 131.506G2.18S131.183M52.O62.L121.17J9 Question Mark
Data Research: 1904 Seth Thomas Serial List
 Question Mark
Database Version: v52.636 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 3.63 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 10.22 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.085% Question Mark
Registry Population:
Scoped for This Run Only		3 (3.00%) Question Mark
Value Guide
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Production Metrics Tree: Grade 506

Target Profile: 18S-M3-17J-ONL-AP

Seth Thomas Grade 506 (All Variations): 1,200 ETP
18S: 1,200 100.00%
18s, Grade 506
18S-M3: 1,200 100.00%
18s, Grade 506, Model 3
18S-M3-17J: 1,200 100.00%
18s, Grade 506, Model 3, 17 Jewels
18S-M3-17J-ONL: 1,180 98.33%
18s, Grade 506, Model 3, 17 Jewels, Openface/Lever/Nickel 		Other: 20
Other Configs or Unclassified
18S-M3-17J-ONL-AP: 1,180 98.33%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 3 watches in the population registry for this run with 1 image.
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Seth Thomas Grade 506 Pocket Watch